Home / 38,154.07-52,651.16-21,159.01

Finding the Fourth Proportional to 38,154.07, 52,651.16 and 21,159.01

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Solution

The fourth proportional to 38,154.07, 52,651.16 and 21,159.01 is: 29,198.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,154.07 : 52,651.16 = 21,159.01 : x
  2. Step 2: Convert to fraction form
    38,154.07/52,651.16 = 21,159.01/x
  3. Step 3: Cross multiply
    38,154.07x = 52,651.16 × 21,159.01
  4. Step 4: Simplify right side
    38,154.07x = 1,114,046,315.16
  5. Step 5: Solve for x
    x = 1,114,046,315.16/38,154.07
  6. Step 6: Final answer
    x = 29,198.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.